Getting there & away
Expreso Uspallata (420045) runs several buses daily to and from Mendoza (AR$13, 2½ hours). Buses continue to Las Cuevas (from Uspallata AR$12, two hours), near the Chilean border, and stop en route at Los Penitentes, Puente del Inca and the turnoff to Laguna Los Horcones for Parque Provincial Aconcagua. They can be flagged from all of these locations on their return to Uspallata from Las Cuevas.
All buses leave from the Expreso Uspallata office in the little strip mall near the junction.